class imbalance

[pedrorohde]

number of parcels and area (in pixels) for each species:		parcels	area
pinus taeda	349	907809
quercus nigra	52	221411
cypress	17	73513
pinus elliottii	16	42433
quercus pagoda	11	39071
nyssa sylvatica	10	59018
pinus palustris	10	9112
liquidambar	8	19212
quercus phellos	5	7360
quercus laurifolia	3	14961
quercus rubra	1	2487
quercus acutissima	1	309
quercus falcata	1	172

ideas to fix:

• oversampling of smaller classes
• extract multiple time series per parcel (i.e. over patches and not the whole parcel)